Frank G. Lemoine

TL;DR: In this article, the authors analyzed three different DORIS time series of coordinates (GSFC, IGN/JPL, LEGOS/CLS) performed independently using different software packages.

TL;DR: In this article, the authors investigated the 18 monthly gravity field solutions from the GRACE twin space-crafts with emphasis on the global scale annual gravity field variations observed from GRACE and modeled from hydrological models as annual changes in terrestrial water storage.

TL;DR: The Gravity Recovery And Interior Laboratory (GRAIL) mission as discussed by the authors is a component of NASA's Discovery Program, which launched successfully from Cape Canaveral Air Force Station on September 10, 2011 and reached the EL-1 Lagrange point and inserted into elliptical, 11.5-hour polar orbits around the Moon on December 31, 2011, and January 1, 2012.

TL;DR: In this article, additional satellite tracking data has been added to the satellite-only geopotential model solution, including, TRANET Doppler tracking data from the GEOSAT Geodetic Mission, TDRSS tracking of the Gamma Ray Observatory (GRO), the X-Ray Timing Explorer (XTE), the Earth Radiation Budget Satellite (ERBS), as well as additional data from Extreme Ultraviolet Explorer (EUVE).

TL;DR: In this paper, high-resolution gravity data from GRAIL have yielded new estimates of the bulk density and thickness of the lunar crust, and the average global crustal thickness is found to lie between 34 and 43 km, a value 10 to 20 km less than several previous estimates.